go: upgrade 1.26.2 -> 1.26.3

go: upgrade 1.26.2 -> 1.26.3

Upgrade to latest 1.26.x release [1]:

$ git --no-pager log --oneline go1.26.2..go1.26.3
2dc996f71b (tag: go1.26.3) [release-branch.go1.26] go1.26.3
8282c628a0 [release-branch.go1.26] cmd/go: reject sumdb response lacking module hash
3baf3eec3b [release-branch.go1.26] all: avoid unsafe StringToUTF16Ptr on Windows
0bec63330d [release-branch.go1.26] net/mail: fix quadratic consumePhrase behavior
7136366ebf [release-branch.go1.26] cmd/go: invalidate test cache when -coverpkg dependencies change
722b68ceca [release-branch.go1.26] cmd/compile: keep blank nodes alive in b.loop
3ae315a8cd [release-branch.go1.26] os: avoid panic when RemoveAll fails to remove a symlink
c9f97f50c4 [release-branch.go1.26] html/template: fix escaping of URLs in meta content attributes
40fa774fff [release-branch.go1.26] cmd/pack: refuse to extract files with directory components
d9389d318b [release-branch.go1.26] net/mail: fix quadratic complexity in consumeComment
dd29b59a2b [release-branch.go1.26] cmd/compile: fix loopvar version detection with line directives
18fa391f45 [release-branch.go1.26] crypto/fips140: add package docs
e0f5c054cb [release-branch.go1.26] net: avoid double-free of cgo pointer when handling large DNS response
2992086cf8 [release-branch.go1.26] lib/fips140: add certified pointing to v1.0.0-c2097c7c
f43caf8712 [release-branch.go1.26] lib/fips140: update inprocess to v1.26.0
19d2ce3401 [release-branch.go1.26] runtime: fix timespec definition on 32bits systems
e9df527f06 [release-branch.go1.26] crypto/tls: wrap ML-KEM hybrids in fips140.WithoutEnforcement
73f417a37c [release-branch.go1.26] go/types, types2: handle unconstrained type parameters correctly in a few places
50856a181c [release-branch.go1.26] cmd/go: use MkdirTemp to create temp directory for "go bug"
e137885d68 [release-branch.go1.26] cmd/compile/internal/devirtualize: use pointer identity for type comparison
c9712872cc [release-branch.go1.26] crypto/internal/fips140/drbg: build tag out entropy generation on Wasm
cb994d85ff [release-branch.go1.26] cmd/fix: change -diff to exit 1 if diffs exist
95470667eb [release-branch.go1.26] net/http/httputil: reencode queries with many parameters in proxy
9b01c04815 [release-branch.go1.26] html/template: fix escaper bypass by treating empty script type as JavaScript
be12fe151c [release-branch.go1.26] runtime: use uname version check for 64-bit time on 32-bit arch codepaths
ec5ebece41 [release-branch.go1.26] all: update x/net to 705de46f
710f29a758 [release-branch.go1.26] runtime: add sysUnreserve to undo sysReserve
efdc0fb354 [release-branch.go1.26] cmd/compile: handle min integer step in loop
ba4554f03b [release-branch.go1.26] cmd/go: specify full path to go command when running go tool covdata
f4e425d342 [release-branch.go1.26] fix incorrect loop trip counts
0b4d5f85e6 [release-branch.go1.26] cmd/link: use bfd ld 2.36+ on linux/arm64 instead of gold

Fixes CVE-2026-42501, CVE-2026-39825, CVE-2026-39836, CVE-2026-42499,
      CVE-2026-39820, CVE-2026-39819, CVE-2026-39817, CVE-2026-33814,
      CVE-2026-39826, CVE-2026-33811 and CVE-2026-39823.

Drop patch handling gold linker as upstream implemented gold linker
availability autodetection with [3].

Release information: [2]

[1] https://github.com/golang/go/compare/go1.26.2...go1.26.3
[2] https://groups.google.com/g/golang-announce/c/qcCIEXso47M
[3] https://github.com/golang/go/commit/0b4d5f85e68ea79b61de9989f9f37a984eb11289

Signed-off-by: Peter Marko <peter.marko@siemens.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>